condition mean min max 12pM Fe 0.0 0.0 0.0 58pM Fe 0.0 0.0 0.0 233pM Fe 0.0 0.0 0.0 1160pM Fe 0.0 0.0 0.0 Dark 0.45158386666666667 0.0 0.9031677333333333 Light 0.33737946153846154 0.33737946153846154 0.33737946153846154 Phloroglucinol 1.055007 1.055007 1.055007